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Optical Variable Attenuator

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HD4104 Optical Variable Attenuator

Optical Variable Attenuator, Test Equipment Series


Model Number : HD4104
Brand : HONDAO
MOQ : 1PCS  

  • Specifications
  • Parameter


HD4104 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, therefore, 4104 can be used in the digital system of communication devices (such as: PHD, SDH) and also in the system of adopting analog modulation (CATV)


  • Portable, rugged, lightweight; Easy to use.
  • displaying dB and dBm attenuating value
  • Attenuating step 0.05dB by circumgyrated dial
  • After off the instruments, the system will have the memorizing of the attenuating value and the attenuating step, in order to restore the system back to the previous shut down state when open the instruments next time
Item HD4104S HD4104M
Attenuating wavelength Range 1260~1650nm
Fiber Model  SM 9/125um  MM62.5/125um(50/125 optional)
Calibrated wavelengths 1310/1490/1550/1625nm
Measurement Range 2~60dB
Resolution 0.05dB
Minimize Insertion Loss <2.0dB
Linearity ±0.5dB
Repeating ±0.2dB
Attenuating Accuracy ±0.8dB
Return Loss at Input/ Output >35dB(typical value40dB)
Optical Connector FC/PC
Max input +20dBm
Displaying type lattice 128*64 black and white, white back ground light
Rechargeable batteries 8.4V
Operation temperature 0~40℃
Operation Time 40 hours
Storage temperature -10~60℃

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